mach 1
Mach 1 is when you whip out your junk and go full speed against a Hispanic girl’s vagina just to show off, but you’re too weak to actually cum.
He tried to do Mach 1 and got laughed at by the whole school.
That guy did Mach 1 and the girl just looked at him like he was a bad joke.
I tried Mach 1 once and my junk was sore for a week.